document.addEventListener('DOMContentLoaded', function () {
    formatAllTables();
    document.body.addEventListener("click", focusOnEditor);

});

function formatAllTables() {
    var tables = document.getElementsByTagName('table');
    for (var i = 0; i < tables.length; i++)
        formatTable(tables[i]);
}

function formatText(tag, data) {
    if (tag === 'heading') {
        var headingTag = document.createElement(data);
        var selection = window.getSelection();
        var range = selection.getRangeAt(0);
        headingTag.appendChild(range.extractContents());
        range.insertNode(headingTag);
    } else {
        document.execCommand(tag, false, data);
    }
}

function formatTable(table) {
    // Add Bootstrap classes to the table
    table.classList.add('table', 'table-striped', 'table-hover');

    // Add Bootstrap classes to the table header cells
    var headerCells = table.getElementsByTagName('th');
    for (var i = 0; i < headerCells.length; i++) {
        headerCells[i].classList.add('');
    }

    // Add Bootstrap classes to the table rows
    var rows = table.getElementsByTagName('tr');
    for (var i = 0; i < rows.length; i++) {
        rows[i].classList.add('');

        // Add event listener to the last cell of each row
        var cells = rows[i].getElementsByTagName('td');
        var lastCell = cells[cells.length - 1];
        lastCell.addEventListener('keydown', function (event) {
            if (event.key === 'Enter') {
                // Check if it's the last cell in the last row
                var lastRow = rows[rows.length - 1];
                if (this.parentNode === lastRow && this === lastRow.lastElementChild) {
                    event.preventDefault();
                    var newParagraph = document.createElement('p');
                    newParagraph.textContent = '\u00A0'; // Insert a non-breaking space to maintain table structure
                    table.parentNode.insertBefore(newParagraph, table.nextSibling);
                    document.getElementById('editor').focus();
                }
            }
        });
    }

    // Add Bootstrap classes to the table data cells
    var cells = table.getElementsByTagName('td');
    for (var i = 0; i < cells.length; i++) {
        cells[i].classList.add('align-middle');
    }
}

function saveForm() {
    console.log("Saving file");

    var editedContent = document.getElementById("editor").innerHTML;
    var editedFilename = document.getElementById("filename").innerText;

    // Set the editor content as the value of the editor-form-content textarea
    document.getElementById("editor-form-content").value = editedContent;
    document.getElementById("filename-form-content").value = editedFilename;

    // Submit the form
    document.getElementById("save-form").submit();
}

function confirmOverwrite() {
    if (confirm("Are you sure you want to overwrite the file contents?")) {
        document.getElementById("template-modal").style.display = "block";
        // Close the modal when the close button or outside of the modal is clicked
        window.addEventListener("click", function (e) {
            if (e.target == document.getElementById("template-modal")) {
                document.getElementById("template-modal").style.display = "none";
            }
        });
    }
}


// Function to focus on the editor when body is clicked
function focusOnEditor() {
    // Check if the clicked element is inside the body div
    if (event.target === document.body) {        // Set the cursor position in the editor
        setCursorPosition(document.getElementById("editor"));
    }
}
// Add event listener to the body element

function redirectToTemplate(templateURL) {
    window.location.href = templateURL;
}

function editFileName() {
    var fileNameElement = document.getElementById("filename");
    var fileName = fileNameElement.innerText.trim();
    var extension = fileName.substring(fileName.lastIndexOf("."));

    // Remove the file extension
    fileName = fileName.replace(extension, "");

    // Allow editing the filename
    fileNameElement.contentEditable = "true";
    fileNameElement.innerText = fileName;
    fileNameElement.focus();

    // Disable the enter key to prevent adding new lines
    fileNameElement.addEventListener("keydown", function (event) {
        if (event.keyCode == 13) {
            event.preventDefault();
            fileNameElement.blur();
        }
    });

    // Update the filename when the user finishes editing
    fileNameElement.onblur = function () {
        fileName = fileNameElement.innerText.trim();

        // Add the file extension back
        fileName += extension;

        fileNameElement.innerText = fileName;
        fileNameElement.contentEditable = "false";
        fileNameElement.removeEventListener("keydown");
    };
}

// Show the table size modal
function addTable() {
    document.getElementById("tableModal").style.display = "block";
    return
}
function createTable() {
    var tableRowsInput = document.getElementById('tableRows');
    var tableColumnsInput = document.getElementById('tableColumns');

    var tableRows = parseInt(tableRowsInput.value);
    var tableColumns = parseInt(tableColumnsInput.value);

    if (!isNaN(tableRows) && !isNaN(tableColumns)) {
        // Create a new table-responsive div
        var tableResponsiveDiv = document.createElement('div');
        tableResponsiveDiv.classList.add('table-responsive');

        // Create a new table element
        var table = document.createElement('table');
        table.classList.add('table', 'table-striped', 'table-bordered');

        // Create the table header
        var thead = document.createElement('thead');
        var headerRow = document.createElement('tr');
        for (var j = 0; j < tableColumns; j++) {
            var headerCell = document.createElement('th');
            var headerText = document.createTextNode('Header ' + (j + 1));
            headerCell.appendChild(headerText);
            headerRow.appendChild(headerCell);
        }
        thead.appendChild(headerRow);

        // Create the table body
        var tbody = document.createElement('tbody');
        for (var i = 0; i < tableRows; i++) {
            var row = document.createElement('tr');
            for (var j = 0; j < tableColumns; j++) {
                var cell = document.createElement('td');
                var cellText = document.createTextNode('Cell ' + (i + 1) + '-' + (j + 1));
                cell.appendChild(cellText);
                row.appendChild(cell);
            }
            tbody.appendChild(row);
        }

        // Append the thead and tbody to the table
        table.appendChild(thead);
        table.appendChild(tbody);

        // Append the table to the table-responsive div
        tableResponsiveDiv.appendChild(table);

        // Insert the table-responsive div into the editor
        var editor = document.getElementById('editor');
        editor.appendChild(tableResponsiveDiv);

        // Create a new <div> element
        var paragraphDiv = document.createElement('div');

        // Create a new <p> element
        var paragraph = document.createElement('p');

        // Set the text content of the paragraph
        var paragraphText = document.createTextNode('');
        paragraph.appendChild(paragraphText);

        // Append the paragraph to the paragraph div
        paragraphDiv.appendChild(paragraph);

        // Insert the paragraph div after the table-responsive div
        editor.appendChild(paragraphDiv);

        // Reset the modal inputs
        tableRowsInput.value = '3';
        tableColumnsInput.value = '3';

        // Close the modal
        document.getElementById('tableModal').style.display = 'none';
    }
}



function addVideo() {
    var url = prompt("Enter the video URL:");

    if (url !== null) {
        var videoElement = document.createElement('video');
        videoElement.controls = true;
        videoElement.src = url;
        document.getElementById('editor').appendChild(videoElement);

        var paragraphElement = document.createElement('p');

        document.getElementById('editor').appendChild(paragraphElement);
    }
}


function insertLink() {
    var url = prompt('Enter the URL:');

    // Check if the URL is null or empty
    if (url === null || url === '') {
        console.log('URL is empty. Aborting link creation.');
        return;
    }

    var label = '';

    // Get the user's selection
    var selection = window.getSelection();

    // Check if the user has made a selection
    if (selection.rangeCount > 0) {
        var range = selection.getRangeAt(0);

        // Get the selected text
        var selectedText = range.toString().trim();

        // Prompt for the label only if there is no selection
        if (selectedText.length === 0) {
            label = prompt('Please enter the Link Text:');
        } else {
            label = selectedText;
        }
    }

    // Check if the URL or label is empty
    if (url === '' || label === '') {
        console.log('URL or label is empty. Aborting link creation.');
        return;
    }

    // Create the link HTML
    var val = '<a href="' + url + '" target="_blank">' + label + '</a>';

    // Insert the link HTML at the current selection or caret position
    document.execCommand('insertHTML', false, val);
}

function undo() {
    document.execCommand('undo', false, null);
}

function redo() {
    document.execCommand('redo', false, null);
}

function selectAll() {
    document.execCommand('selectAll', false, null);
}

function insertImage() {
    var url = prompt('Enter the image URL:');
    if (url !== null) {
        document.execCommand('insertImage', false, url);
    }
}

function setCursorPosition(element) {
    var range = document.createRange();
    range.selectNodeContents(element);
    range.collapse(false);
    var selection = window.getSelection();
    selection.removeAllRanges();
    selection.addRange(range);
}

document.addEventListener('keydown', function (event) {
    if ((event.ctrlKey || event.metaKey)) {
        switch (event.key.toLowerCase()) {
            case 'b':
                event.preventDefault();
                formatText('bold');
                break;
            case 'i':
                event.preventDefault();
                formatText('italic');
                break;
            case 'u':
                event.preventDefault();
                formatText('underline');
                break;
            case 'l':
                event.preventDefault();
                insertLink();
                break;
            case 'z':
                event.preventDefault();
                undo();
                break;
            case 'y':
                event.preventDefault();
                redo();
                break;
            case 'd':
                event.preventDefault();
                confirmDeletion();
                break;
            case 'p':
                event.preventDefault();
                insertImage();
                break;
            case 't':
                event.preventDefault();
                confirmOverwrite();
                break;
            case 's':
                event.preventDefault();
                saveForm();
                break;
            case 'f':
                event.preventDefault();
                formatText('removeFormat');
                break;
            case 'T':
                event.preventDefault();
                addTable();
                break;
            case 'm':
                event.preventDefault();
                addVideo();
                break;
        }
    }
});